147 entries under stupid topic. ×

5
boneheaded(adjective, simple, slow, impulsive)
5
bovine(adjective, dull, heavy, impassive)
5
clueless
5
mindless(adjective, dull, simple, slow, silly)
4
simple-minded(adjective, dull, simple, slow, silly)
4
daffy(adjective, simple, slow, silly, foolish)
4
feebleminded(adjective, foolish, unintelligent, mindless)
4
ludicrous(adjective, dull, foolish, half-baked)
4
lumpish(adjective, dull, simple, slow, heavy)
4
oafish(adjective, dull, simple, slow)
3
opaque(adjective, dull, silly, foolish)
3
beaglebrained
3
cushion-witted
3
fat(adjective, silly, green, thick)
3
inert(adjective, dull, heavy, impassive)
3
insensate(adjective, dull, simple, slow, informal)
3
numskulled(adjective, dull, simple, slow)
3
scatterbrained(adjective, simple, slow, silly, foolish)
3
sluggish(adjective, dull, simple, slow, silly)
2
heavy(adjective, dull, silly, impassive)
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APASmart Define. (2016). dumb thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/dumb/thesaurus/synonyms
ChicagoSmart Define. 2016. "dumb thesaurus" https://smartdefine.org/dumb/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, dumb thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/dumb/thesaurus/synonyms>.
MLASmart Define. "dumb thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/dumb/thesaurus/synonyms>